A nurse is instructing a group of clients regarding nutrition. Which of the following is a good source of omega-3 fatty acids that the nurse should include in the teaching?
Fish
Leafy green vegetables
Dietary supplements
Corn oil
The Correct Answer is A
A. Fish, particularly fatty fish such as salmon, mackerel, and sardines, are excellent sources of omega-3 fatty acids, which are beneficial for heart health and reducing inflammation.
B. Leafy green vegetables contain some omega-3 fatty acids, but they are not considered a primary source compared to fish.
C. Dietary supplements can provide omega-3s, but they are not food sources and may not be necessary if individuals can obtain omega-3s from their diet.
D. Corn oil is primarily high in omega-6 fatty acids, which do not provide the same benefits as omega-3s and can lead to an imbalance if consumed in excess.
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Correct Answer is D
Explanation
A. Applying the pulse oximeter to a finger may not be ideal due to edema, which can affect the accuracy of the reading.
B. Using a skin fold is not a typical location for pulse oximetry and may not provide accurate readings.
C. Applying the probe to a toe may be less effective if the toenails are thickened, potentially affecting blood flow to that area and the accuracy of the reading.
D. The earlobe is a suitable alternative for measuring oxygen saturation, particularly in cases where peripheral sites (like fingers or toes) are compromised.
Correct Answer is A
Explanation
A. A private, negative-pressure room is essential for clients suspected of having tuberculosis (TB) to prevent airborne transmission. This setup helps contain airborne pathogens and protects other clients and staff.
B. A private, positive-pressure room is inappropriate for this situation because it is designed for immunocompromised patients, not those with potential infectious diseases.
C. A semi-private, negative-pressure room would not provide adequate isolation for a client with suspected TB, increasing the risk of transmission to another patient.
D. A semi-private, positive-pressure room is also inappropriate, as it poses a risk of spreading infectious agents to others in the facility.